LAN can see what software you’re installing.
@end enumerate
+It is also possible to enable or disable substitute server discovery at
+run-time by running:
+
+@example
+herd discover guix-daemon on
+herd discover guix-daemon off
+@end example
+
@item --disable-deduplication
@cindex deduplication
Disable automatic file ``deduplication'' in the store.
(environ environment)
#t)))))
+(define shepherd-discover-action
+ ;; Shepherd action to enable or disable substitute servers discovery.
+ (shepherd-action
+ (name 'discover)
+ (documentation
+ "Enable or disable substitute servers discovery and restart the
+'guix-daemon'.")
+ (procedure #~(lambda* (_ status)
+ (let ((environment (environ)))
+ (if (and status
+ (string=? status "on"))
+ (begin
+ (format #t "enable substitute servers discovery~%")
+ (setenv "discover" "on"))
+ (begin
+ (format #t "disable substitute servers discovery~%")
+ (unsetenv "discover")))
+ (action 'guix-daemon 'restart)
+ (environ environment)
+ #t)))))
+
(define (guix-shepherd-service config)
"Return a <shepherd-service> for the Guix daemon service with CONFIG."
(match-record config <guix-configuration>
(documentation "Run the Guix daemon.")
(provision '(guix-daemon))
(requirement '(user-processes))
- (actions (list shepherd-set-http-proxy-action))
+ (actions (list shepherd-set-http-proxy-action
+ shepherd-discover-action))
(modules '((srfi srfi-1)
(ice-9 match)
(gnu build shepherd)))
;; the 'set-http-proxy' action.
(or (getenv "http_proxy") #$http-proxy))
+ (define discover?
+ (or (getenv "discover") #$discover?))
+
;; Start the guix-daemon from a container, when supported,
;; to solve an installation issue. See the comment below for
;; more details.
#$@(if use-substitutes?
'()
'("--no-substitutes"))
- #$@(if discover?
- '("--discover=yes")
- '())
+ (string-append "--discover="
+ (if discover? "yes" "no"))
"--substitute-urls" #$(string-join substitute-urls)
#$@extra-options